EP 0756185 A2 19970129 - PD/LD module and PD module
Title (en)
PD/LD module and PD module
Title (de)
Photodioden/Diodenlaser-Baustein und Photodioden-Baustein
Title (fr)
Module photodiode/laser à diode et module photodiode
Publication
Application
Priority
- JP 21116695 A 19950726
- JP 34770595 A 19951215
Abstract (en)
Bidirectional optical communication system transmits optical signals with two different wavelengths lambda 1 and lambda 2 ( lambda 1< lambda 2) between a broadcasting station and a plurality of ONU terminals. Bisecting separation of lambda 1 and lambda 2 requires expensive WDMs. lambda 1-selective photodiode which absorbs all the lambda 1 light and allows all the lambda 2 to pass through is proposed. The energy gap Eg1 of the light receiving layer is determined to be smaller than hc/ lambda 2 and larger than hc/ lambda 1. The lambda 1-selective photodiode and the other photodiode are positioned in series on a beam line, which dispenses with WDMs. <IMAGE>
IPC 1-7
IPC 8 full level
G02B 6/42 (2006.01); H01S 5/026 (2006.01); H04B 10/24 (2006.01); H04B 10/40 (2013.01)
CPC (source: EP US)
G02B 6/421 (2013.01 - EP US); G02B 6/4246 (2013.01 - EP US); H01S 5/0262 (2013.01 - EP US); H04B 10/40 (2013.01 - EP US); G02B 6/4207 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0756185 A2 19970129; EP 0756185 A3 19980923; EP 0756185 B1 20020410; CA 2181771 A1 19970127; DE 69620515 D1 20020516; DE 69620515 T2 20020814; US 5764826 A 19980609
DOCDB simple family (application)
EP 96305337 A 19960719; CA 2181771 A 19960722; DE 69620515 T 19960719; US 68792496 A 19960726